1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
RoseWind [281]
2 years ago
8

How many real solutions if any, does 2x^2-3x+8=0​

Mathematics
1 answer:
fenix001 [56]2 years ago
3 0

Answer:

The quadratic equation 2\, x^{2} - 3\, x + 8 = 0 has no real solution.

Step-by-step explanation:

Rewrite the quadratic equation 2\, x^{2} - 3\, x + 8 = 0 in the standard form a\, x^{2} + b\, x + c = 0:

2\, x^{2} + (-3)\, x + 8 = 0, for which:

  • a = 2.
  • b = (-3).
  • c = 8.

The quadratic discriminant of a\, x^{2} + b\, x + c = 0 is (b^{2} - 4\, a\, c).  The quadratic discriminant of 2\, x^{2} + (-3)\, x + 8 = 0 would be:

\begin{aligned}& b^{2} - 4\, a\, c \\ =\; & (-3)^{2} - 4 \times 2 \times 8 \\ =\; & (-55)\end{aligned}.

Since the quadratic discriminant of this equation is negative, this quadratic equation has no real solution.

You might be interested in
If x is the average (arithmetic mean) of m and 9, y is the average of 2m and 15, and z is the average of 3m and 18, what is the
Gnesinka [82]

Answer:

C

Step-by-step explanation:

If x is the average (arithmetic mean) of m and 9, y is the average of 2m and 15, and z is the average of 3m and 18,

x=(m+9)/2

y=(2m+15)/2

z=(3m+18)/2

the average of x, y, and z

=(x+y+z)/3

=(m+9+2m+15+3m+18)/3

=(6m+42)/3

=2m+14

ans is C

8 0
3 years ago
Read 2 more answers
If minor arc AB measures 9pi, what is the length of the radius of circle C? If necessary, round your answer to the nearest inch.
Y_Kistochka [10]

Answer: 12 inches

Step-by-step explanation:

took the test

8 0
3 years ago
Read 2 more answers
Does this graph show a function? Explain how you know.
Sav [38]
A. It passes the vertical line test
4 0
3 years ago
Which inequality correctly compares Two-fifths, Six-sevenths, Five-eighths, and 1?
Ronch [10]

Answer:

<u>2/5 < 5/8 < 6/7 < 1 </u>

   <u>OR</u>    

<u>1 > 6/7 > 5/8 > 2/5</u>

Step-by-step explanation:

It is required to compare Two-fifths, Six-sevenths, Five-eighths, and 1

Two-fifths = 2/5

Six-sevenths = 6/7

Five-eighths = 5/8

So, the given numbers are: 2/5, 6/7, 5/8, and 1

We need to make the numbers in order from the least to the greatest or from the greatest to the least

The easy method is convert the rational numbers to decimal numbers

So,

2/5 = 0.4

6/7 ≈ 0.857

5/8 = 0.625

1 = 1

So, the numbers form the least to the greatest are:

0.4 , 0.625 , 0.857 , 1

So,

2/5 , 5/8 , 6/7 , 1

The inequality correctly compares the numbers are:

<u>2/5 < 5/8 < 6/7 < 1</u>

Or can be written from the greatest to the least as:

<u>1 > 6/7 > 5/8 > 2/5 </u>

6 0
3 years ago
Find the volume of the pyramid.
xz_007 [3.2K]
I think it is 432.sorry if it is wrong though. My bad calculation error.

3 0
3 years ago
Other questions:
  • Celine is knitting a scarf. the finished length will be 1.2 meters. so far she has knitted 0.8meters. how many more meters does
    5·1 answer
  • Can someone please help me with this? will give you brainiest if correct
    15·1 answer
  • 10y - 2x=-6<br> Find the x- intercept and y- intercept
    5·2 answers
  • the Piney Creek Swim Club is preparing for the opening day of the summer season the full hold 22, 410 gallon of water, and water
    10·1 answer
  • What is a conversion factor that you can use to convert gallons to pints?
    10·1 answer
  • Solve the inequality. 6x + 14 &gt; 20<br> ???????
    10·1 answer
  • What is the coefficant of x^3 y^2 in the expansion of (2x+y)^5
    9·1 answer
  • Expand and simplify 4(2x-1)+3(2+5)
    8·1 answer
  • 5 times a number "x" is not less than 15 as an inequality
    9·2 answers
  • What is the mean of the data set?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!